Alright on a more serious note... here's what an ANIME game needs to succeed on a global level.
*Recognizable characters. You need the Gokus, the Narutos, the Ichigo, the Ippos, the Gutts. Basically characters tied to some IP which already has a dedicated fan base globally. Either that or you need recognizable international video game characters like Cloud Strife, Dante, Raiden etc.
*Fast, fluid and flashy game play. Not really a problem with most anime games but people don't want a Street Fighter type game with these characters... they want a more VS style game play preferably multiple characters. And the visuals should be similar to GG Xrd.
*Easy to get into controls. 4 buttons max for the attacks... new gamers don't want to deal with this 6 button stuff. No complex inputs... that means no RDPs, no pretzels, no double QCF motions, no 1 frame links and you need a generous buffer window. You also don't want to put in shortcuts galore where people get out DPs when they want to do a HCB. Chains over links for combo confirms but keep the combo length short which means more aggressive implementation of HSD and damage scaling.
*Extensive tutorial mode similar to what KI and Skullgirls offer. On top of that you need more involved stat tracking that gives performance update after every match. How many times you were hit out in counter hit status... how many times you were opened up low versus high... how many times you were thrown.
*A legitimate single player mode with unlockables. Probably the hardest thing to do right in a fighting game but still necessary to get the big bucks.
*Lots of customizable options from the lore of the characters. I want to dress up Goku in the Saiyan armor... I want to play Ippo in his fisherman clothes. They can make these unlockable through grind or microtransactions... don't really care.
*Legitimate online modes. Online training, proper matching making, good netcode, team battle modes and the TRUE NEXT GEN fighting game mode... Online Gambling mode. It's like online spectating but you can put up in-game currency as side bets for each match. Now this is how you get real hype within the game. Also there should be like a Gladiator/Arena mode where you put up some amount of in-game currency to fight against the best of the best as a sort of online tournament but the payout is in-game currency.
That's just the tip of the ice berg. A lot of the appeal is going to come from the recognizable characters, how the game looks and plays along with its features.